Seemingly confirmed by Broadcom themselves... The new driver "brcm80211" which first appeared in kernel 2.6.38, and apparently first enabled in natty-beta-1 suffers from this same issue.
This led me to comments from Broadcom developers explaining why channels >11 are disabled by default: "Regulatory Implementation This generation of chips contain additional regulatory support independent of the driver. The devices use a single worldwide regulatory domain, with channels 12-14 (2.4 GHz band) and channels 52-64 and 100-140 (5 GHz band) restricted to passive operation. Transmission on those channels is suppressed until appropriate other traffic is observed on those channels." [http://linuxwireless.org/en/users/Drivers/brcm80211] I think it is safe to assume that Broadcom disabled channels >11 in (bcm)wl also, for the same reason. So the bug is confirmed and intentional, for radio regulatory compliance :( ** Summary changed: - bcmwl can't see channels > 11 (2.462GHz) any more + bcmwl/brcm80211 can't see wifi channels >11 (2.462GHz) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/713528 Title: bcmwl/brcm80211 can't see wifi channels >11 (2.462GHz) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
